Grain-car door



Nov. 2z, /1927.

S. DENEKA GRAIN CAR DOOR Filed lFeb. 28. 1927 2 Sheets-Sheet l I NV EN TOR. Denakcp ATTORNEYJ Nov. 22, 1927.

S. DENEKA GRAIN CAR DOOR Filed Feb, 28. 1927 2 Sheets-Sheet 2 Tis. Qn TiQ/.

NVENTOR.

5, enem/ fa U/Wjj ATTO EYS.

Patented Nov. 22, 1927.

STEPHEN DENEKA, or Homann, SASKATCHEWAN, canapa.

onrein-CAR DOOR.

Application filed February 2.8, k1927. Serial No. 171,638:`

riQhis invent-ion relates to certain new and useful improvements in grain car doors and has for its primary object to provide a grain car door toi-med ot' independent panels or sections disposed one above the other and slid'able iiiguidewaysat'the door opening with devices for raising and lowering the several sections ci the door.

A further object of the invention is to provide a grain 'car door of the above type wherein a boi; or casing disposed beneath the car bottom and at the side ot' the car in proximity of the door opening for receiving the lowered door sections that are laterally' displaced into the box to permit lowering i'iiovement of the neXt above door section 'y with the several door sections when shifted to open positions and disposed-within the 'receiving box having spring devices associated therewith for normally vforcing the ksame to a position to be operatively engaged by the operating devices for raising and loweringthe several door sections.

`With the above and other objectsy in view that will become apparent as the nat-ure kof the invention is better understood, the'same consists in the novel form,v combination andV arrangement of parts hereinafter more fully described,`shown in the accompanying drawings and claimed. Intlie `drawings wherein like reference characters iindicate Corresponding` parts throughout the several views,

Figure l is aside elevational view of a grain car equipped with the door that constitutes the present invention; y

-Figure- 2 is a Aliront elevational view7 paritly broken away ot' one of the panels or sections of the door showing the anti-friction guide rollers at one'end and the rack teeth at the other end; f Y

Figure 3 is a longitudinal horizontal sectional view taken n line 3-3 of Figure l, showing the panel guidesy at each side of the door opening for the several door sections and the gear wheel operatively engaged with the rack teeth at one end of` one of thev door sections;

Figure 4L is a vertical cross sectional view taken on line #4 of Figure l showing the three sections ot the door in their raised closed position, and the tei'isioiied latch bar for holding the door sections closed and locked, there being also shown the box beneath the car bottom yfor receiving the sev-v eral sections of the door 3.

.Figures 5 and 6 are vertical sectional views, similar to Figure 4t showing the several doorr sections received in the boX'beneath the car door opening;

Figure -7 is a detail sectionalview taken on line 7 7 of Figure 1 showing the slotted guide in the end wall of the box with the end of the latch bar extending therethrough; and

Figure 8 isa detail sectionall view talrenon line '8*-8 of Figure l showing the key releasable latch carried by the latch bar that is engagedV withthe lower edge of the lower section of the door for holding the several sections of the door in 'their closed and locked position.. Y Y y i i i Referring more in detail to the accompanying drawing, there is illustrated by the reference numeral l, a grain `car "having a side door opening 2 thatisclosed by 'ai door comprising kside edge engaging vertically sliding sectionsv 3, t and 5.r i' i As 'shown in Figure 3l, the rdoor opening 2 is provided `on its' opposite vertical sides at the outer side of the car body with angle iron guides and Thetween which the sections of the door vertically slide. The several door sections are' of identical construc- Y tion and as shown in detail in Figure 2, one vertical side Vedge of the door section has anti-friction guide rollers Si'journaled in bracketed portions of said edge 'while the opposite side edge ofthe door section is provided with rack/ teeth 9. With the door secrtions'., 4@ and r5 vdisposed in` the angle iron guides 6 and 7, 'the' anti-friction rollers 8 move over the guide 6 while'the raclr teeth 9 upon the opposite corresponding ends of the several door sections move in proximity of the angle guide 7.

The several door sections aresuccessively plowe'red into a'receiving casing vor box disposed beneat-h the car 'bottom adjacent the side door opening 2 and toy eiiect raising and lowering movement 'of the several door sections inthe guides 6 and 7, there is provided a toothed-wheel 10 journaled in thefbearing 1l at one-'side of the door opening-2 with the peripheral edge' of the: toothed 'wheel 10 extending through an Vopening in the angle guide 7 for engagement with the rack teeth 9 upon the several door sections, the wheel l0 being yprovided with a handle 12 for rotation thereof. i

The box 'disposed beneath the car door opening for receivingthe'several door sections isopenat its front sideyas shown in -posed adjacent each of the four corners of the rear wall and carries an enlarged head 18 at the inner end thereof within the box, a

-l coiled spring 19 surrounding each rod between the head 18 and rear wall 14 of the box.

When the several doors, 3, 4 and 5 are in their elevated and closed positions as shown in Figure 4, the latch bar 2O is disposed beneath the lower edge of the lower door section 3 to prevent lowering movement of the several door sections. The latch bar 20 carries a reduced tongue 21 at each end thereof that extends through the slot 22` formed in the end walls 15 of the box and form' guides for sliding movement of the latch bar. A rod 23 is carried by the latch bar and extends through a bearing in the rear wall 14 of the box, the latch bar 2O being normally influenced inv the direction toward the forward open side of the box and to assume a position beneath the door sections by the spring 24 surrounding th-e rod 23 between the latch bar 20 and rear wall of the casing. As shown in Figure 8, a key operated latch mechanism 25 is carriedv by the latch bar for locking engagement withl a keeper socket in the lower edge ofthe lower `doorl section 3.

l/Vhen the several door sections 3, 4 and 5 are in their elevated and closed positions as shown in Figures 1 and 4, the spring 24 upon the rod 23 projects the latch bar 20 forwardly to be positioned beneath the lower door section 3' for latching engagement therewith as shown in. Figure 8. lVhen it is desired to open the door of the grain car, the latch mechanism 25 is released by a key and the latch bar 20 is manually forced rearwardly against .the tension of the spring lThe toothed wheel 10 is then rotated and being in engagement with the rack teeth 9 upon the lower door section 3, said door section is lowered into the box beneath the car opening and occupi-es the position forwardly of the tensioned plungers 17. This position of the door sections is shown in lFigure 5. Then the several door sections are completely removed from the door opening 2, they are disposed in the receiving box as: illustrated in Figure 6.- W hen the door sections are in the position shown in Figure 5, the lowered door section 3 is manually forced rearwardly toward the rear wall 14 of the box and against the tension of the springs 19 to provide clearance ,for the lowering` movement of the next upper door` section 4 that is lowered by the toothed wheel 10 meshing with the rack teeth 9 upon the adjacent end of the door section 4. When the door section 4 has been lowered into the box, both of the door sections 4 and 3 are then further moved toward the rear wall of the box to provide a clearance for the lowering movement of the upper door section 5Y and when the three door sections have been lowered into the box as shown in Figure 6, the latch bar 2O is automatically projected forwardly under the influence of the spring 24. The toothed wheel 10! is so disposed with reference to the box that the rack teeth 9 at the upper end of each door section are in meshing engagement with the toothed wheel when the door sections are completely lowered into the box, the door sections being displaceable from the toothed wheelby rearwardly sliding movement, thereof yinto the box toward the rear wall thereof. It will therefore be seen that the toothed wheel 10 remains in meshing engagement with the rack teeth upon the door section that is at the outer open side of the box. I y' lfu closing the door opening 2, the latch bar 20 is pushed rearwardly against the tension of the spring 24 to remove the same from the upper path' of movementl of the upper door section 5,. the toothed wheel 10 is then rotated for raising the door section 5, and at the proper moment, the springs 19 will forwardly project the two remaining 'door sections 3 and 4 to position the door section 4 to be engaged by the toothed wheel 10 and when the three door sections have been raised into the door opening 2, the latch bar 2O is automatically projected by the spring 24 and the several door sections are then locked in their closed position.

From al@ above daarna description 0r the invention, it is believed that the construction and operation thereof will at once be apparent, and while there is herein shown the preferred embodiment of the invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spiritand scope of the invention as claimed.

What l claim as new is:

1. ln a giaincar door, a door formedof a plurality of vertically sliding sections, means for raising and lowering the sections, and a box disposed beneath the door opening` for successive receptionof the door sections during lowering movement, slidalole, tensioned rods carried by therear wall of the box and disposed for engagement withthe door sections for normally moving the door sections toward the outer side of the box and in alinement with the car door opening'.

2. In a grain car door, a door formed of a plurality of vertically sliding sectionsmeans for raising and lowering the sections, a boxV disposed beneath the door opening for suc;V

cessive reception of the door sections during lowering movement, the raising and lower` (l il ing means comprising rack teeth on corresponding ends of the door sections, and a toothed wheel positioned -forl meshing engagement with the rack teeth, slidable tensioned rods carried by the rear wall of the boX and disposed for engagement with the door sections for normally moving the door sections toward the outer side of the box and in alinement with the car door opening.

3. In a grain ear door, a door formed of a plurality of vertically sliding sections, means for raising and lowering the sections, a boX disposed beneath the door opening for successive reception of the door sections during lowering movement, and a tensioned latch bar horizontally slidable at the upper end ot the box to be positioned beneath -the lower door section and latchedthereto for holding the door sections in closed positions, slidable tensioned rods carried by the rear wall of the box and disposed for engagement with the door sections for normally moving the door sections toward the outer side of means for raising and lowering the sections,

a boX disposed beneath the door opening for sucessive reception of the door sections durlng lowering movement, the raising and lowering means comprising rack teeth oncorresponding ends of the door sections and a toothed wheel positioned for meshing engagement with the racky teeth, a tensioned latch bar horizontally slidable at the upper end of the box to be positioned beneath the lower door section for holding the door sections in closed positions, slidable tensioned rods carried by the rear wall of the box and disposed for engagement with the door sections for normally moving the door sections toward the outer side of the box and in alinement with the car door opening.

In testimony whereof I atHX my signature.

STEPHEN DENEKA. 

